//package me.zhengjie.service.impl;
//
//import com.alibaba.fastjson.JSON;
//import com.qiniu.common.QiniuException;
//import com.qiniu.http.Response;
//import com.qiniu.storage.BucketManager;
//import com.qiniu.storage.Configuration;
//import com.qiniu.storage.UploadManager;
//import com.qiniu.storage.model.DefaultPutRet;
//import com.qiniu.storage.model.FileInfo;
//import com.qiniu.util.Auth;
//import me.zhengjie.domain.QiniuConfig;
//import me.zhengjie.domain.QiniuContent;
//import me.zhengjie.repository.QiniuContentRepository;
//import me.zhengjie.service.dto.QiniuQueryCriteria;
//import me.zhengjie.utils.QiNiuUtil;
//import me.zhengjie.exception.BadRequestException;
//import me.zhengjie.repository.QiNiuConfigRepository;
//import me.zhengjie.service.QiNiuService;
//import me.zhengjie.utils.FileUtil;
//import me.zhengjie.utils.PageUtil;
//import me.zhengjie.utils.QueryHelp;
//import me.zhengjie.utils.ValidationUtil;
//import org.springframework.beans.factory.annotation.Value;
//import org.springframework.cache.annotation.CacheConfig;
//import org.springframework.cache.annotation.CacheEvict;
//import org.springframework.cache.annotation.CachePut;
//import org.springframework.cache.annotation.Cacheable;
//import org.springframework.data.domain.Pageable;
//import org.springframework.stereotype.Service;
//import org.springframework.transaction.annotation.Propagation;
//import org.springframework.transaction.annotation.Transactional;
//import org.springframework.web.multipart.MultipartFile;
//import javax.servlet.http.HttpServletResponse;
//import java.io.IOException;
//import java.util.ArrayList;
//import java.util.LinkedHashMap;
//import java.util.List;
//import java.util.Map;
//import java.util.Optional;
//
///**
// * @author Zheng Jie
// * @date 2018-12-31
// */
//@Service
//@CacheConfig(cacheNames = "qiNiu")
//@Transactional(propagation = Propagation.SUPPORTS, readOnly = true, rollbackFor = Exception.class)
//public class QiNiuServiceImpl implements QiNiuService {
//
//    private final QiNiuConfigRepository qiNiuConfigRepository;
//
//    private final QiniuContentRepository qiniuContentRepository;
//
//    public QiNiuServiceImpl(QiNiuConfigRepository qiNiuConfigRepository, QiniuContentRepository qiniuContentRepository) {
//        this.qiNiuConfigRepository = qiNiuConfigRepository;
//        this.qiniuContentRepository = qiniuContentRepository;
//    }
//
//    @Value("${qiniu.max-size}")
//    private Long maxSize;
//
//    @Override
//    @Cacheable
//    public Object queryAll(QiniuQueryCriteria criteria, Pageable pageable){
//        return PageUtil.toPage(qiniuContentRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder),pageable));
//    }
//
//    @Override
//    public List<QiniuContent> queryAll(QiniuQueryCriteria criteria) {
//        return qiniuContentRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder));
//    }
//
//    @Override
//    @Cacheable(key = "'1'")
//    public QiniuConfig find() {
//        Optional<QiniuConfig> qiniuConfig = qiNiuConfigRepository.findById(1L);
//        return qiniuConfig.orElseGet(QiniuConfig::new);
//    }
//
//    @Override
//    @CachePut(cacheNames = "qiNiuConfig", key = "'1'")
//    @Transactional(rollbackFor = Exception.class)
//    public QiniuConfig update(QiniuConfig qiniuConfig) {
//        String http = "http://", https = "https://";
//        if (!(qiniuConfig.getHost().toLowerCase().startsWith(http)||qiniuConfig.getHost().toLowerCase().startsWith(https))) {
//            throw new BadRequestException("外链域名必须以http://或者https://开头");
//        }
//        qiniuConfig.setId(1L);
//        return qiNiuConfigRepository.save(qiniuConfig);
//    }
//
//    @Override
//    @CacheEvict(allEntries = true)
//    @Transactional(rollbackFor = Exception.class)
//    public QiniuContent upload(MultipartFile file, QiniuConfig qiniuConfig) {
//        FileUtil.checkSize(maxSize, file.getSize());
//        if(qiniuConfig.getId() == null){
//            throw new BadRequestException("请先添加相应配置，再操作");
//        }
//        // 构造一个带指定Zone对象的配置类
//        Configuration cfg = new Configuration(QiNiuUtil.getRegion(qiniuConfig.getZone()));
//        UploadManager uploadManager = new UploadManager(cfg);
//        Auth auth = Auth.create(qiniuConfig.getAccessKey(), qiniuConfig.getSecretKey());
//        String upToken = auth.uploadToken(qiniuConfig.getBucket());
//        try {
//            String key = file.getOriginalFilename();
//            if(qiniuContentRepository.findByKey(key) != null) {
//                key = QiNiuUtil.getKey(key);
//            }
//            Response response = uploadManager.put(file.getBytes(), key, upToken);
//            //解析上传成功的结果
//
//            DefaultPutRet putRet = JSON.parseObject(response.bodyString(), DefaultPutRet.class);
//            //存入数据库
//            QiniuContent qiniuContent = new QiniuContent();
//            qiniuContent.setSuffix(FileUtil.getExtensionName(putRet.key));
//            qiniuContent.setBucket(qiniuConfig.getBucket());
//            qiniuContent.setType(qiniuConfig.getType());
//            qiniuContent.setKey(FileUtil.getFileNameNoEx(putRet.key));
//            qiniuContent.setUrl(qiniuConfig.getHost()+"/"+putRet.key);
//            qiniuContent.setSize(FileUtil.getSize(Integer.parseInt(file.getSize()+"")));
//            return qiniuContentRepository.save(qiniuContent);
//        } catch (Exception e) {
//           throw new BadRequestException(e.getMessage());
//        }
//    }
//
//    @Override
//    @Cacheable
//    public QiniuContent findByContentId(Long id) {
//        QiniuContent qiniuContent = qiniuContentRepository.findById(id).orElseGet(QiniuContent::new);
//        ValidationUtil.isNull(qiniuContent.getId(),"QiniuContent", "id",id);
//        return qiniuContent;
//    }
//
//    @Override
//    @Cacheable
//    public String download(QiniuContent content,QiniuConfig config){
//        String finalUrl;
//        String type = "公开";
//        if(type.equals(content.getType())){
//            finalUrl  = content.getUrl();
//        } else {
//            Auth auth = Auth.create(config.getAccessKey(), config.getSecretKey());
//            // 1小时，可以自定义链接过期时间
//            long expireInSeconds = 3600;
//            finalUrl = auth.privateDownloadUrl(content.getUrl(), expireInSeconds);
//        }
//        return finalUrl;
//    }
//
//    @Override
//    @CacheEvict(allEntries = true)
//    @Transactional(rollbackFor = Exception.class)
//    public void delete(QiniuContent content, QiniuConfig config) {
//        //构造一个带指定Zone对象的配置类
//        Configuration cfg = new Configuration(QiNiuUtil.getRegion(config.getZone()));
//        Auth auth = Auth.create(config.getAccessKey(), config.getSecretKey());
//        BucketManager bucketManager = new BucketManager(auth, cfg);
//        try {
//            bucketManager.delete(content.getBucket(), content.getKey() + "." + content.getSuffix());
//            qiniuContentRepository.delete(content);
//        } catch (QiniuException ex) {
//            qiniuContentRepository.delete(content);
//        }
//    }
//
//    @Override
//    @CacheEvict(allEntries = true)
//    @Transactional(rollbackFor = Exception.class)
//    public void synchronize(QiniuConfig config) {
//        if(config.getId() == null){
//            throw new BadRequestException("请先添加相应配置，再操作");
//        }
//        //构造一个带指定Zone对象的配置类
//        Configuration cfg = new Configuration(QiNiuUtil.getRegion(config.getZone()));
//        Auth auth = Auth.create(config.getAccessKey(), config.getSecretKey());
//        BucketManager bucketManager = new BucketManager(auth, cfg);
//        //文件名前缀
//        String prefix = "";
//        //每次迭代的长度限制，最大1000，推荐值 1000
//        int limit = 1000;
//        //指定目录分隔符，列出所有公共前缀（模拟列出目录效果）。缺省值为空字符串
//        String delimiter = "";
//        //列举空间文件列表
//        BucketManager.FileListIterator fileListIterator = bucketManager.createFileListIterator(config.getBucket(), prefix, limit, delimiter);
//        while (fileListIterator.hasNext()) {
//            //处理获取的file list结果
//            QiniuContent qiniuContent;
//            FileInfo[] items = fileListIterator.next();
//            for (FileInfo item : items) {
//                if(qiniuContentRepository.findByKey(FileUtil.getFileNameNoEx(item.key)) == null){
//                    qiniuContent = new QiniuContent();
//                    qiniuContent.setSize(FileUtil.getSize(Integer.parseInt(item.fsize+"")));
//                    qiniuContent.setSuffix(FileUtil.getExtensionName(item.key));
//                    qiniuContent.setKey(FileUtil.getFileNameNoEx(item.key));
//                    qiniuContent.setType(config.getType());
//                    qiniuContent.setBucket(config.getBucket());
//                    qiniuContent.setUrl(config.getHost()+"/"+item.key);
//                    qiniuContentRepository.save(qiniuContent);
//                }
//            }
//        }
//    }
//
//    @Override
//    @CacheEvict(allEntries = true)
//    public void deleteAll(Long[] ids, QiniuConfig config) {
//        for (Long id : ids) {
//            delete(findByContentId(id), config);
//        }
//    }
//
//    @Override
//    @CacheEvict(allEntries = true)
//    @Transactional(rollbackFor = Exception.class)
//    public void update(String type) {
//        qiNiuConfigRepository.update(type);
//    }
//
//    @Override
//    public void downloadList(List<QiniuContent> queryAll, HttpServletResponse response) throws IOException {
//        List<Map<String, Object>> list = new ArrayList<>();
//        for (QiniuContent content : queryAll) {
//            Map<String,Object> map = new LinkedHashMap<>();
//            map.put("文件名", content.getKey());
//            map.put("文件类型", content.getSuffix());
//            map.put("空间名称", content.getBucket());
//            map.put("文件大小", content.getSize());
//            map.put("空间类型", content.getType());
//            map.put("创建日期", content.getUpdateTime());
//            list.add(map);
//        }
//        FileUtil.downloadExcel(list, response);
//    }
//}
